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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT03762265
Other study ID # EFC17092
Secondary ID PRN1008-0122018-
Status Terminated
Phase Phase 3
First received
Last updated
Start date January 8, 2019
Est. completion date December 17, 2021

Study information

Verified date July 2023
Source Sanofi
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This was a Phase 3 randomized, parallel-group, double-blind, placebo-controlled trial (blinded treatment [BT] period) followed by an open-label extension [OLE] period intended to evaluate the efficacy and safety of oral PRN1008 in moderate to severe pemphigus. After completing the open-label extension period, eligible participants might continue in a long term extension (LTE) Period of 48 weeks.


Description:

A total of 131 male or female participants with newly diagnosed or relapsing moderate to severe pemphigus (pemphigus vulgaris [PV] or pemphigus foliaceus [PF]) were enrolled in the trial worldwide. The trial would last 68 weeks (approximately 17 months) for each participant. For participants eligible to enroll in the LTE, the trial might last up to 116 weeks. Participants were randomized at Day 1, using a 1:1 ratio to receive PRN1008 or placebo twice per day, by relapsing/newly diagnosed disease history (newly diagnosed defined as within 6 months of screening).


Recruitment information / eligibility

Status Terminated
Enrollment 131
Est. completion date December 17, 2021
Est. primary completion date July 30, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria: - Male or female participants, aged 18 to 80 years old with moderate to severe, newly diagnosed or relapsing PV or PF, with a clinical presentation and histopathology consistent with PV or PF. - Positive circulating anti-desmoglein 1 (anti-dsg1) or 3 autoantibody titer. - At screening, pemphigus disease area index score of at least 9 points for relapsing participants or at least 15 points for newly diagnosed participants. - Adequate hematologic, hepatic, and renal function. - Effective means of contraception. Exclusion Criteria: - Suspected paraneoplastic pemphigus and other forms of pemphigus that were not PV or PF. - Previous use of a Bruton tyrosine kinase inhibitor. - Pregnant or lactating women. - Electrocardiogram clinically significant abnormalities. - A history of malignancy of any type within 5 years before Day 1, other than surgically excised non-melanoma skin cancers or in situ cervical cancer. - Use of immunologic response modifiers as concomitant medication and with the washout period. - Use of proton pump inhibitor drugs such as omeprazole and esomeprazole within 3 days of Day 1. - Concomitant use of known strong-to-moderate inducers or inhibitors of cytochrome P450 3A (CYP3A) within 3 days or 5 half-lives (whichever is longer) of Day 1 - Use of CYP3A-sensitive substrate drugs. - Had received any investigational drug within the 30 days before Day 1. - History of drug abuse within the previous 12 months. - Alcoholism or excessive alcohol use. - Any other clinically significant disease, condition or medical history that, in the opinion of the Investigator, would interfere with participant safety, trial evaluations, and/or trial procedures.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Rilzabrutinib
Pharmaceutical form: Tablet Route of administration: Oral
Placebo
Pharmaceutical form: Tablet Route of administration: Oral

Locations

Country Name City State
Argentina Central Recruiting (Principia Biopharma) Buenos Aires
Argentina Central Recruiting (Principia Biopharma) Buenos Aires
Argentina Central Recruiting (Principia Biopharma) San Nicolás
Australia Central Recruiting (Principia Biopharma) Fremantle Western Australia
Australia Central Recruiting (Principia Biopharma) Melbourne
Australia Central Recruiting (Principia Biopharma) Sydney
Brazil Central Recruiting (Principia Biopharma) Campinas
Brazil Central Recruiting (Principia Biopharma) Campo Grande
Brazil Central Recruiting (Principia Biopharma) Ribeirão Preto
Bulgaria Central Recruiting (Principia Biopharma) Pleven
Bulgaria Central Recruiting (Principia Biopharma) Plovdiv
Bulgaria Central Recruiting (Principia Biopharma) Sofia
Canada Central Recruiting (Principia Biopharma) Winnipeg Manitoba
Croatia Central Recruiting (Principia Biopharma) Osijek
Croatia Central Recruiting (Principia Biopharma) Zagreb
France Central Recruiting (Principia Biopharma) Bobigny
France Central Recruiting (Principia Biopharma) Bordeaux
France Central Recruiting (Principia Biopharma) Lille
France Central Recruiting (Principia Biopharma) Pierre-Bénite
France Central Recruiting (Principia Biopharma) Rouen
France Central Recruiting (Principia Biopharma) Toulouse
Germany Central Recruiting (Principia Biopharma) Berlin
Germany Central Recruiting (Principia Biopharma) Dresden
Germany Central Recruiting (Principia Biopharma) Düsseldorf
Germany Central Recruiting (Principia Biopharma) Erlangen
Germany Central Recruiting (Principia Biopharma) Heidelberg
Germany Central Recruiting (Principia Biopharma) Kiel
Germany Central Recruiting (Principia Biopharma) Lübeck
Germany Central Recruiting (Principia Biopharma) Münster
Greece Central Recruiting (Principia Biopharma) Athens
Greece Central Recruiting (Principia Biopharma) Ioánnina
Greece Central Recruiting (Principia Biopharma) Larisa
Greece Central Recruiting (Principia Biopharma) Thessaloníki
Greece Central Recruiting (Principia Biopharma) Thessaloníki
Israel Central Recruiting (Principia Biopharma) Be'er Sheva
Israel Central Recruiting (Principia Biopharma) Haifa
Israel Central Recruiting (Principia Biopharma) Ramat Gan
Israel Central Recruiting (Principia Biopharma) Tel Aviv
Italy Central Recruiting (Principia Biopharma) Brescia
Italy Central Recruiting (Principia Biopharma) Catania
Italy Central Recruiting (Principia Biopharma) Florence
Italy Central Recruiting (Principia Biopharma) Milan
Italy Central Recruiting (Principia Biopharma) Padova
Italy Central Recruiting (Principia Biopharma) Parma
Italy Central Recruiting (Principia Biopharma) Rome
Italy Central Recruiting (Principia Biopharma) Torino
Poland Central Recruiting (Principia Biopharma) Gdansk
Poland Central Recruiting (Principia Biopharma) Kraków
Poland Central Recruiting (Principia Biopharma) Lublin
Poland Central Recruiting (Principia Biopharma) Warsaw
Poland Central Recruiting (Principia Biopharma) Wroclaw
Poland Central Recruiting (Principia Biopharma) Wroclaw
Serbia Central Recruiting (Principia Biopharma) Belgrade
Serbia Central Recruiting (Principia Biopharma) Novi Sad
Spain Central Recruiting (Principia Biopharma) Barcelona
Spain Central Recruiting (Principia Biopharma) Barcelona
Spain Central Recruiting (Principia Biopharma) Barcelona
Spain Central Recruiting (Principia Biopharma) Córdoba
Spain Central Recruiting (Principia Biopharma) Madrid
Spain Central Recruiting (Principia Biopharma) Pamplona
Taiwan Central Recruiting (Principia Biopharma) Dalin
Taiwan Central Recruiting (Principia Biopharma) Kaohsiung
Taiwan Central Recruiting (Principia Biopharma) Taipei
Turkey Central Recruiting (Principia Biopharma) Fatih
Turkey Central Recruiting (Principia Biopharma) Istanbul
Turkey Central Recruiting (Principia Biopharma) Istanbul
Turkey Central Recruiting (Principia Biopharma) Konyaalti
Turkey Central Recruiting (Principia Biopharma) Merkez
Ukraine Central Recruiting (Principia Biopharma) Dnipro
Ukraine Central Recruiting (Principia Biopharma) Dnipro
Ukraine Central Recruiting (Principia Biopharma) Kyiv
Ukraine Central Recruiting (Principia Biopharma) Lviv
Ukraine Central Recruiting (Principia Biopharma) Zaporizhzhya
United Kingdom Central Recruiting (Principia Biopharma) London
United States Central Recruiting (Principia Biopharma) Albuquerque New Mexico
United States Central Recruiting (Principia Biopharma) Ann Arbor Michigan
United States Central Recruiting (Principia Biopharma) Ann Arbor Michigan
United States Central Recruiting (Principia Biopharma) Atlanta Georgia
United States Central Recruiting (Principia Biopharma) Austin Texas
United States Central Recruiting (Principia Biopharma) Boca Raton Florida
United States Central Recruiting (Principia Biopharma) Chapel Hill North Carolina
United States Central Recruiting (Principia Biopharma) Cleveland Ohio
United States Central Recruiting (Principia Biopharma) Coral Gables Florida
United States Central Recruiting (Principia Biopharma) Durham North Carolina
United States Central Recruiting (Principia Biopharma) Murray Utah
United States Central Recruiting (Principia Biopharma) New York New York
United States Central Recruiting (Principia Biopharma) New York New York
United States Central Recruiting (Principia Biopharma) Rochester Minnesota

Sponsors (1)

Lead Sponsor Collaborator
Principia Biopharma, a Sanofi Company

Countries where clinical trial is conducted

United States,  Argentina,  Australia,  Brazil,  Bulgaria,  Canada,  Croatia,  France,  Germany,  Greece,  Israel,  Italy,  Poland,  Serbia,  Spain,  Taiwan,  Turkey,  Ukraine,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Percentage of Participants Who Achieved Complete Remission (CR) With a Corticosteroids Dose of Less Than or Equal to (<=) 10 mg/Day From Week 29 to Week 37: Pemphigus Vulgaris Participants in Modified Intent-to-Treat (PV mITT) Population Complete remission was defined as absence of new and established lesions and was intended to mean "no disease activity" for 2 consecutive weeks, with Pemphigus Disease Area Index (PDAI) activity score =0 and CS dose <=10 mg. PDAI score weighted for number and size of lesions with score of 0 (absent) to 10 given for skin (12 body locations), scalp and mucous membrane showing disease activity (erosions/blisters or new erythema). PDAI total score ranged from 0 to 250 points representing disease activity (120 points for skin activity; 10 points for scalp activity; 120 points for mucosal activity). Higher score indicated more disease activity. In this outcome measure (OM), percentage of participants who achieved CR while on a daily corticosteroids dose of <=10 mg/day were reported. From Week 29 to Week 37
Primary Percentage of Participants Who Achieved Complete Remission With a Corticosteroids Dose of <=10 mg/Day From Week 29 to Week 37: Modified Intent-to-Treat (mITT) Population Complete remission was defined as absence of new and established lesions and was intended to mean "no disease activity" for 2 consecutive weeks, with PDAI activity score =0 and CS dose <=10 mg. PDAI score weighted for number and size of lesions with score of 0 (absent) to 10 given for skin (12 body locations), scalp and mucous membrane showing disease activity (erosions/blisters or new erythema). PDAI total score ranged from 0 to 250 points representing disease activity (120 points for skin activity; 10 points for scalp activity; 120 points for mucosal activity). Higher score indicated more disease activity. In this OM, percentage of participants who achieved CR while on a daily corticosteroids dose of <=10 mg/day were reported. From Week 29 to Week 37
Secondary Cumulative Oral Corticosteroid Dose From Baseline to Week 37: PV mITT Population The cumulative dose (in milligrams) of sponsor-provided oral CS (prednisone or prednisolone) received by the participants during the BT period was calculated from Baseline to Week 37 and is reported in this OM. Baseline to Week 37
Secondary Cumulative Oral Corticosteroid Dose From Baseline to Week 37: mITT Population The cumulative dose (in milligrams) of sponsor-provided oral CS (prednisone or prednisolone) received by the participants during the BT period was calculated from Baseline to Week 37 and is reported in this OM. Baseline to Week 37
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Week 37: PV mITT Population Cumulative duration (in days) of CR post first CS dose of <= 10 mg/day from Baseline to Week 37 was analyzed with a zero-inflated negative binomial model with terms of treatment group and disease history, and an offset based on the number of days on blinded treatment period and were reported in this OM. Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". Baseline to Week 37
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Week 37: mITT Population Cumulative duration (in days) of CR post first CS dose of <= 10 mg/day from Baseline to Week 37 was analyzed with a zero-inflated negative binomial model with terms of treatment group and disease history, and an offset based on the number of days on blinded treatment period and were reported in this OM. Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". Baseline to Week 37
Secondary Time to First Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Week 37: PV mITT Population Time to first CR was the time (in days) to achieve CR while on CS dose of <=10 mg/day. Complete remission was defined as the absence of new and established lesions to the "no disease activity". Kaplan-Meier method was used for the analysis. Baseline to Week 37
Secondary Time to First Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Week 37: mITT Population Time to first CR was the time (in days) to achieve CR while on CS dose of <=10 mg/day. Complete remission was defined as the absence of new and established lesions to the "no disease activity". Kaplan-Meier method was used for the analysis. Baseline to Week 37
Secondary Percentage of Participants Who Achieved Complete Remission With a Corticosteroids Dose of <=5 mg/Day From Week 29 to Week 37: PV mITT Population Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". In this OM, percentage of participants who achieved CR while on a daily corticosteroids dose of <=5 mg/day were reported. From Week 29 to Week 37
Secondary Percentage of Participants Who Achieved Complete Remission With a Corticosteroids Dose of <=5 mg/Day From Week 29 to Week 37: mITT Population Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". In this OM, percentage of participants who achieved CR while on a daily corticosteroids dose of <=5 mg/day were reported. From Week 29 to Week 37
Secondary Percentage of Participants Who Had Pemphigus Disease Area Index (PDAI) Score <3 With a Corticosteroids Dose <=10 mg/Day From Week 29 to Week 37: PV mITT Population PDAI is specific cutaneous and mucosal disease activity assessment performed by investigator based on evaluation of lesions in well-defined anatomical locations. The score weighted for the number and size of lesions with score of 0 (absent) to 10 given for skin (12 body locations), scalp and mucous membrane showing disease activity (erosions/blisters or new erythema). Thus, PDAI total activity score ranged from 0 to 250 points representing disease activity (120 points for skin activity; 10 points for scalp activity; 120 points for mucosal activity). Higher score indicated more disease activity. In this OM, participants with PDAI score <3 while on a CS dose of <=10 mg/day were reported. From Week 29 to Week 37
Secondary Percentage of Participants Who Had Pemphigus Disease Area Index Score <3 With a Corticosteroids Dose <=10 mg/Day From Week 29 to Week 37: mITT Population PDAI is specific cutaneous and mucosal disease activity assessment performed by investigator based on evaluation of lesions in well-defined anatomical locations. The score weighted for the number and size of lesions with score of 0 (absent) to 10 given for skin (12 body locations), scalp and mucous membrane showing disease activity (erosions/blisters or new erythema). Thus, PDAI total activity score ranged from 0 to 250 points representing disease activity (120 points for skin activity; 10 points for scalp activity; 120 points for mucosal activity). Higher score indicated more disease activity. In this OM, participants with PDAI score <3 while on a CS dose of <=10 mg/day were reported. From Week 29 to Week 37
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Weeks 61 and 109: PV mITT Population Cumulative duration (in days) of CR post all doses of CS <=10 mg/day during Baseline to Week 61 and Baseline to Week 109 were reported in this OM. Complete remission was defined as the absence of new and established lesions to the "no disease activity". Baseline to Week 61 and Baseline to Week 109
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Weeks 61 and 109: mITT Population Cumulative duration (in days) of CR post all doses of CS <=10 mg/day during Baseline to Week 61 and Baseline to Week 109 were reported in this OM. Complete remission was defined as the absence of new and established lesions to the "no disease activity". Baseline to Weeks 61 and Baseline to Week 109
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose = 0 mg/Day From Baseline to Weeks 61 and 109: PV mITT Population Cumulative duration (in days) of CR post all doses of CS =0 mg/day during Baseline to Week 61 and Baseline to Week 109 were reported in this OM. Complete remission was defined as the absence of new and established lesions to the "no disease activity". Baseline to Week 61 and Baseline to Week 109
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose = 0 mg/Day From Baseline to Weeks 61 and 109: mITT Population Cumulative duration (in days) of CR post all doses of CS dose = 0 mg/day during Baseline to Week 61 and Baseline to Week 109 were reported in this OM. Complete remission was defined as the absence of new and established lesions to the "no disease activity". Baseline to Week 61 and Baseline to Week 109
Secondary Glucocorticoid Toxicity Index (GTI) - Cumulative Worsening Score (CWS) and Aggregate Improvement Score (AIS) at Week 37: PV mITT Population GTI assessed glucocorticoid (GC) related morbidity and GC-sparing ability of other therapies; composed of 2 components: Composite GTI and specific list. Composite GTI had 9 domains and specific list had 23 items (11 domains), used as complementary tool to C-GTI. Composite GTI score:sum of 9 domain-specific scores at each visit and cumulative GTI score:sum of composite GTI scores across each visit. 2 cumulative GTI scores: CWS and AIS at Week 37 reported in this OM. CWS assessed cumulative GC toxicity regardless of whether toxicity had lasting effects/was transient. AIS assessed new therapy effectiveness in decreasing any Baseline GC toxicity over time. CWS composite score range: 0 to 439 and AIS composite score range: -346 to 439. In CWS and AIS, minimum score=least toxicity and maximum score=most toxicity. Least square (LS) mean and standard error (SE) from analysis of covariance model using treatment, disease history as fixed effects and Baseline GTI score and CS dose as covariates. At Week 37
Secondary Glucocorticoid Toxicity Index - Cumulative Worsening Score and Aggregate Improvement Score at Week 37: mITT Population GTI assessed GC related morbidity and GC-sparing ability of other therapies; composed of 2 components: Composite GTI and specific list. Composite GTI contained 9 domains and specific list contained of 23 items (11 domains), used as complementary tool to C-GTI. Composite GTI score: sum of 9 domain-specific scores at each visit and cumulative GTI score: sum of composite GTI scores across each visit. Two cumulative GTI scores: CWS and AIS at Week 37 were reported in this OM. CWS assessed cumulative GC toxicity regardless of whether toxicity had lasting effects/was transient. AIS assessed new therapy effectiveness in decreasing any Baseline GC toxicity over time. CWS composite score ranged from 0 to 439 and AIS composite score ranged from -346 to 439. For CWS and AIS, minimum score = least toxicity and maximum score = most toxicity. LS mean and SE from analysis of covariance model using treatment, disease history as fixed effects and Baseline GTI score and CS dose as covariates. At Week 37
Secondary Change From Baseline in Pemphigus Disease Area Index Score at Weeks 5, 13, 25, 37, 61, and 109: PV mITT Population PDAI is specific cutaneous and mucosal disease activity assessment performed by investigator based on evaluation of lesions in well-defined anatomical locations. The score weighted for the number and size of lesions with score of 0 (absent) to 10 given for skin (12 body locations), scalp and mucous membrane showing disease activity (erosions/blisters or new erythema). Thus, PDAI total activity score ranged from 0 to 250 points representing disease activity (120 points for skin activity; 10 points for scalp activity; 120 points for mucosal activity). Higher score indicated more disease activity. PDAI activity score was measured independently of the CS dose administered in the participants. Baseline, Weeks 5, 13, 25, 37, 61, and 109
Secondary Change From Baseline in Pemphigus Disease Area Index Score at Weeks 5, 13, 25, 37, 61, and 109: mITT Population PDAI is specific cutaneous and mucosal disease activity assessment performed by investigator based on evaluation of lesions in well-defined anatomical locations. The score weighted for the number and size of lesions with score of 0 (absent) to 10 given for skin (12 body locations), scalp and mucous membrane showing disease activity (erosions/blisters or new erythema). Thus, PDAI total activity score ranged from 0 to 250 points representing disease activity (120 points for skin activity; 10 points for scalp activity; 120 points for mucosal activity). Higher score indicated more disease activity. PDAI activity score was measured independently of the CS dose administered in the participants. Baseline, Weeks 5, 13, 25, 37, 61, and 109
Secondary Change From Baseline in Autoimmune Bullous Disease Quality of Life (ABQOL) Score at Weeks 5, 13, 25, 37, 61, and 109: PV mITT Population ABQOL, a 17-item questionnaire is a valid and reliable tool to assess quality of life in participants with autoimmune blistering diseases. Each question score ranged from 0 to 3 points, 0 = never, 1 = occasionally, 2 = sometimes and 3 = all the time, where higher score = poor QOL. The total ABQoL score was calculated by summing the score of each question and it ranged from 0 to 51, where higher score = more QOL impairment. Baseline, Weeks 5, 13, 25, 37, 61, and 109
Secondary Change From Baseline in Autoimmune Bullous Disease Quality of Life Score at Weeks 5, 13, 25, 37, 61, and 109: mITT Population ABQOL, a 17-item questionnaire is a valid and reliable tool to assess quality of life in participants with autoimmune blistering diseases. Each question score ranged from 0 to 3 points, 0 = never, 1 = occasionally, 2 = sometimes and 3 = all the time, where higher score = poor QOL. The total ABQoL score was calculated by summing the score of each question and it ranged from 0 to 51, where higher score = more QOL impairment. Baseline, Weeks 5, 13, 25, 37, 61, and 109
Secondary Percentage of Participants With Autoimmune Bullous Disease Quality of Life Score of Zero at Weeks 5, 13, 25, 37, 61, and 109: PV mITT Population ABQOL, a 17-item questionnaire is a valid and reliable tool to assess quality of life in participants with autoimmune blistering diseases. Each question score ranged from 0 to 3 points, 0 = never, 1 = occasionally, 2 = sometimes and 3 = all the time, where higher score = poor QOL. The total ABQoL score was calculated by summing the score of each question and it ranged from 0 to 51, where higher score = more QOL impairment. Percentage of participants with ABQOL score of '0' were reported in this outcome measure. At Weeks 5, 13, 25, 37, 61, and 109
Secondary Percentage of Participants With Autoimmune Bullous Disease Quality of Life Score of Zero at Weeks 5, 13, 25, 37, 61, and 109: mITT Population ABQOL, a 17-item questionnaire is a valid and reliable tool to assess quality of life in participants with autoimmune blistering diseases. Each question score ranged from 0 to 3 points, 0 = never, 1 = occasionally, 2 = sometimes and 3 = all the time, where higher score = poor QOL. The total ABQoL score was calculated by summing the score of each question and it ranged from 0 to 51, where higher score = more QOL impairment. Percentage of participants with ABQOL score of '0' were reported in this outcome measure. At Weeks 5, 13, 25, 37, 61, and 109
Secondary Change From Baseline in the European Quality of Life Working Group Health Status Measure 5 Dimensions, 5 Levels (EQ-5D-5L) Score: Visual Analogue Scale (VAS) Scores at Weeks 5, 13, 25, 37, 61, and 109 EQ-5D-5L: standardized measure of health status that provides general assessment of health and wellbeing. EQ-5D VAS was used to record a participant's rating for his/her current health-related quality of life state and captured on a vertical VAS scale ranging from 0 to 100, where 0=worst imaginable health state and 100=best imaginable health state, where higher states indicated better outcomes. Baseline, Weeks 5, 13, 25, 37, 61, and 109
Secondary Change From Baseline in the European Quality of Life Working Group Health Status Measure 5 Dimensions, 5 Levels Score: Individual Dimension at Weeks 5, 13, 25, 37, 61, and 109 EQ-5D-5L: standardized measure of health status that provides general assessment of health and wellbeing. The EQ-5D descriptive system comprises 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has a 5-level response: no problems, slight problems, moderate problems, severe problems, and extreme problems. Response options are measured with a 5-point Likert scale (for the 5L version). The 5D-5L systems are converted into a single index utility score between 0 to 1, where higher score indicates a better health state and lower score indicate worse health state. Baseline, Weeks 5, 13, 25, 37, 61, and 109
Secondary Time to First Complete Remission With a Corticosteroids Dose <=10 mg/Day From Baseline to Weeks 61 and 109 Time to first CR was the time (in days) to achieve CR while on a CS dose of <=10 mg/day from Baseline to Week 61 and from Baseline to Week 109. Complete remission was defined as absence of new and established lesions to the "no disease activity". Baseline to Week 61 and Baseline to Week 109
Secondary Total Number of Disease Relapses/Flares From Initial Control of Disease Activity (CDA) to Week 37: PV mITT Population Total Number of Disease Relapses/Flares which occurred from initial CDA to Week 37 were reported. CDA was defined as disappearance of new lesions cease to form and established lesions begin to heal. Relapse/flare was defined by the appearance of 3 or more new lesions after CDA and within a month that do not heal spontaneously within 1 week, or by the extension of established lesions, in a participant who had achieved CDA. From initial CDA up to Week 37 (i.e., during any time from Baseline up to Week 37)
Secondary Total Number of Disease Relapses/Flares From Initial Control of Disease Activity to Week 37: mITT Population Total Number of Disease Relapses/Flares which occurred from initial CDA to Week 37 were reported. CDA was defined as disappearance of new lesions cease to form and established lesions begin to heal. Relapse/flare was defined by the appearance of 3 or more new lesions after CDA and within a month that do not heal spontaneously within 1 week, or by the extension of established lesions, in a participant who had achieved CDA. From initial CDA up to Week 37 (i.e., during any time from Baseline up to Week 37)
Secondary Time to Initial Relapse/Flare From Initial Control of Disease Activity to Week 37: PV mITT Population Time duration (in days) from the time of initial relapse/flare which occurred from initial CDA up to Week 37 were reported in this OM. CDA was defined as the visit at which new lesions cease to form and established lesions begin to heal. Relapse/flare was defined by the appearance of 3 or more new lesions after CDA and within a month that do not heal spontaneously within 1 week, or by the extension of established lesions, in a participant who had achieved CDA. Kaplan-Meier method was used for the analysis. From initial CDA up to Week 37 (i.e., during any time from Baseline up to Week 37)
Secondary Time to Initial Relapse/Flare From Initial Control of Disease Activity to Week 37: mITT Population Time duration (in days) from the time of initial relapse/flare which occurred from initial CDA up to Week 37 were reported in this OM. CDA was defined as the visit at which new lesions cease to form and established lesions begin to heal. Relapse/flare was defined by the appearance of 3 or more new lesions after CDA and within a month that do not heal spontaneously within 1 week, or by the extension of established lesions, in a participant who had achieved CDA. Kaplan-Meier method was used for the analysis. From initial CDA up to Week 37 (i.e., during any time from Baseline up to Week 37)
Secondary Percentage of Participants With 3 or More New Lesions Within 1 Month That do Not Heal Spontaneously Within 1 Week, or With Extension of Established Lesions at Week 37: PV mITT Population Percentage of Participants With 3 or More New Lesions Within past 1 month that do not heal spontaneously within past 1 week, or with extension of established lesions, were assessed at Week 37 and reported in this OM. At Week 37
Secondary Percentage of Participants With 3 or More New Lesions Within 1 Month That do Not Heal Spontaneously Within 1 Week, or With Extension of Established Lesions at Week 37: mITT Population Percentage of participants with 3 or more new lesions within past 1 month that do not heal spontaneously within past 1 week, or with extension of established lesions, were assessed at Week 37 and reported in this OM. At Week 37
Secondary Percentage of Participants With at Least One Disease Relapse/Flare From Initial Control of Disease Activity to Week 37: PV mITT Population CDA was defined as the visit at which new lesions cease to form and established lesions begin to heal. Disease relapse/flare was defined by the appearance of 3 or more new lesions after CDA and within a month that do not heal spontaneously within 1 week, or by the extension of established lesions, in a participant who had achieved CDA. Percentages were calculated based on number of participants assessed (i.e. participants achieved CDA) in each treatment group. Percentage of participants with at least one disease relapse/flare from Initial CDA to Week 37 were reported in this OM. From initial CDA up to Week 37 (i.e., during any time from Baseline up to Week 37)
Secondary Percentage of Participants With at Least One Disease Relapse/Flare From Initial Control of Disease Activity to Week 37: mITT Population CDA was defined as the visit at which new lesions cease to form and established lesions begin to heal. Disease relapse/flare was defined by the appearance of 3 or more new lesions after CDA and within a month that do not heal spontaneously within 1 week, or by the extension of established lesions, in a participant who had achieved CDA. Percentages were calculated based on number of participants assessed (i.e. participants achieved CDA) in each treatment group. Percentage of participants with at least one disease relapse/flare from Initial CDA to Week 37 were reported in this OM. From initial CDA up to Week 37 (i.e., during any time from Baseline up to Week 37)
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose <=10 mg/Day From Week 37 to Week 61: PV mITT Population Cumulative duration (in days) of CR post first dose of CS <=10 mg/day from Week 37 to Week 61 were reported in this OM. Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". From Week 37 to Week 61
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose <=10 mg/Day From Week 37 to Week 61: mITT Population Cumulative duration (in days) of CR post first dose of CS <=10 mg/day from Week 37 to Week 61 were reported in this OM. Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". From Week 37 to Week 61
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose = 0 mg/Day From Week 37 to Week 61: PV mITT Population Cumulative duration (in days) of CR post first dose of CS = 0 mg/day from Week 37 to Week 61 were reported in this OM. Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". From Week 37 to Week 61
Secondary Cumulative Duration of Complete Remission With a Corticosteroids Dose = 0 mg/Day From Week 37 to Week 61: mITT Population Cumulative duration (in days) of CR post first dose of CS = 0 mg/day from Week 37 to Week 61 were reported in this OM. Complete remission was defined as the absence of new and established lesions and was intended to mean "no disease activity". From Week 37 to Week 61
Secondary Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs) An adverse event (AE) was defined as any untoward medical occurrence in a participant who received study drug and does not necessarily had to have a causal relationship with the treatment. Serious AEs (SAEs) were any untoward medical occurrence that resulted in any of the following outcomes: death, life-threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. TEAEs were the AEs that developed or worsened or became serious after the administration of first dose of study drug in each period. BT Period: From Day 1 of Week 1 to Week 37, OLE Period: from Week 37 to Week 61 and LTE Period: from Week 61 up to 4 weeks after the last dose at Week 109 (i.e., up to Week 113)
Secondary Pharmacokinetics (PK): Plasma Concentration of Rilzabrutinib Data for this OM was not planned to be collected and analyzed for placebo arm of the study. Pre-dose and 2 hours post-dose on Day 1
Secondary Pharmacodynamics (PD): Change From Baseline in Antibody Levels - Anti-desmoglein 1 (Anti-dsg 1) and Anti-desmoglein 3 (Anti-dsg 3) at Weeks 13, 25, 37, 49, 61, 73, 85, 97, and 109: PV mITT Population Anti-dsg1 and anti-dsg3 autoantibody levels was assessed by enzyme-linked immunosorbent assay (ELISA) method. Baseline, Weeks 13, 25, 37, 49, 61, 73, 85, 97, and 109
Secondary Pharmacodynamics: Change From Baseline in Antibody Levels - Anti-desmoglein 1 (Anti-dsg 1) and Anti-desmoglein 3 (Anti-dsg 3) at Weeks 13, 25, 37, 49, 61, 73, 85, 97 and 109: mITT Population Anti-dsg1 and anti-dsg3 autoantibody levels was assessed by ELISA method. Baseline, Weeks 13, 25, 37, 49, 61, 73, 85, 97, and 109
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